*{
    padding: 0;
    margin: 0;
    font-size: 14px;
    color: #242424;
    -webkit-user-select: none;

}
body{
    background: #0fffff;
}
li{
    list-style: none;

}

#banner{
    position: relative;
    width: 190px;
    height: 450px;
    margin: 20px 50px;
    background: white;
    li{
        height: 25px;
        padding-left: 18px;
        line-height: 25px;
        cursor: pointer;
        &:hover{
            background: grey;
        }
    }

    .section{
        width: 800px;
        height: 450px;
        position: absolute;
        left: 180px;
        top: 0px;
        display: none;
        background: white;
        box-shadow:0px 0px 3px #333333;
    }
}